Senator Sullivan threatens legal action over namesake challenger

U.S. Senator Dan Sullivan is threatening legal action against a Republican challenger who shares his name, claiming the candidacy is designed to confuse voters in Alaska's nonpartisan top-four primary.

Senator Dan S. Sullivan faces Dan J. Sullivan, a retired teacher from Petersburg, in a crowded field for the U.S. Senate seat. Under Alaska's election system, the top four vote-getters advance to the ranked-choice general election in November regardless of party.

The incumbent senator accused his opponents of attempting to deceive voters. "These guys are purposely trying to trick my constituents to rig, and I don't use that lightly, rig an election," he said in a social-media post.

Dan J. Sullivan has rejected accusations that his candidacy is a sham.

A Bluesky post referencing the 2022 Murkowski race noted that Alaska's ballot format lists only candidate name and party registration, raising questions about how voters will distinguish between the two candidates.

Public attention to the race has focused in part on the fact that there are at least three prominent Alaska political figures named Dan Sullivan: the incumbent U.S. senator, the 2026 Senate candidate from Petersburg, and a former mayor of Anchorage who served from 2009 to 2015.

The Alaska Division of Elections has the authority to determine candidate eligibility. When questions arise, the division may request documentation and issue a preliminary ineligibility finding subject to a final determination after the candidate has an opportunity to respond.